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Cellectis schedules Sept. 14 business update call

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(Neutral)
Form Type
6-K

Rhea-AI Filing Summary

Cellectis S.A. (CLLS), a clinical-stage biotechnology company focused on gene-edited cell and gene therapies, announced it will host a conference call and webcast on September 14, 2026 to provide a business update. The company will hold an English-language call at 8:00 a.m. ET / 2:00 p.m. CET, followed by a French-language call at 9:00 a.m. ET / 3:00 p.m. CET. Both events will be accessible via webcast and telephone, with a replay available on the company’s website.

Cellectis develops allogeneic CAR T immunotherapies and other gene therapies using its in-house gene-editing and manufacturing platform, with headquarters in Paris and additional locations in New York and Raleigh, NC.

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Business update date September 14, 2026 Date of scheduled conference call and webcast
English call time 8:00 a.m. ET / 2:00 p.m. CET Start time for English-language business update call
French call time 9:00 a.m. ET / 3:00 p.m. CET Start time for French-language business update call
U.S. phone numbers +1 (800) 717 1738; +1 (646) 307 1865 Dial-in options for both English and French calls
France toll-free number +33 (800) 945 120 France toll-free dial-in for both calls
gene-editing platform technical
"a clinical-stage biotechnology company using its pioneering gene editing platform"
allogeneic medical
"The company utilizes an allogeneic approach for CAR T immunotherapies"
Allogeneic describes a process or material involving different individuals of the same species, such as cells, tissues, or organs donated from one person to another. It is important to investors because products or treatments based on allogeneic sources can enable scalable, off-the-shelf solutions, potentially reducing costs and increasing accessibility in healthcare and biotech industries.
CAR T immunotherapies medical
"an allogeneic approach for CAR T immunotherapies in oncology"
off-the-shelf medical
"pioneering the concept of off-the-shelf and ready-to-use gene-edited CAR T-cells"
Off-the-shelf describes products, software, medical devices, or solutions that are commercially available and ready to use without custom design or development. Investors care because off-the-shelf items typically cost less and reach the market faster than bespoke alternatives, reducing project risk and expense; like buying a ready-made appliance instead of commissioning a custom-built one, they offer predictable performance and clearer regulatory and cost forecasts.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Cellectis S.A. (CLLS) announce in this Form 6-K?

Cellectis announced it will host a conference call and webcast on September 14, 2026 to provide a business update, offering separate English- and French-language sessions accessible via webcast and phone, with a replay available on the company’s website.

When is Cellectis (CLLS) holding its English-language business update call?

The English-language business update call is scheduled for September 14, 2026 at 8:00 a.m. ET / 2:00 p.m. CET. It will be accessible via a webcast link and U.S. and France toll-free phone numbers provided in the announcement.

When is Cellectis (CLLS) holding its French-language business update call?

The French-language business update call is scheduled for September 14, 2026 at 9:00 a.m. ET / 3:00 p.m. CET. Investors can join through the specified webcast link or by using the listed U.S. and France toll-free phone numbers.

How can investors access the Cellectis (CLLS) September 14, 2026 webcasts?

Investors can access the webcasts via the two specific webcast links included for the English and French calls, or by dialing the listed phone numbers, including U.S. and France toll-free options. A replay will be available on Cellectis’ website following the event.

What does Cellectis (CLLS) do as a business?

Cellectis is a clinical-stage biotechnology company using a gene-editing platform to develop allogeneic CAR T immunotherapies in oncology and gene therapies in other indications. It has in-house manufacturing and locations in Paris, New York, and Raleigh, NC.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

Date of Report: September 11, 2026

Commission File Number: 001-36891

Cellectis S.A.
(Exact Name of registrant as specified in its charter)

8, rue de la Croix Jarry
75013 Paris, France
+33 1 81 69 16 00

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
Form 20-F [ X ]      Form 40-F [   ]

 

 


EXHIBIT INDEX

 

Exhibit Title
   
99.1 Press Release, dated September 11, 2026

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

      Cellectis S.A.    
  (Registrant)
   
  
Date: September 11, 2026     /s/ André Choulika    
  André Choulika
  Chief Executive Officer
  

EXHIBIT 99.1

Cellectis to Host Conference Call and Webcast on September 14 to Provide a Business Update

NEW YORK, Sept. 11, 2026 (GLOBE NEWSWIRE) -- Cellectis (the “Company”) (Euronext Growth: ALCLS - NASDAQ: CLLS), a clinical-stage biotechnology company using its pioneering gene editing platform to develop life-saving cell and gene therapies, today announced that it will host a conference call and webcast on Monday, September 14, 2026 to provide a business update.

Conference Call and Webcast Details:

September 14, 2026

  • English-language at 8:00 a.m. ET. / 2:00 p.m. CET

Webcast link:
https://viavid.webcasts.com/starthere.jsp?ei=1775356&tp_key=7d1d05c480
Phone number: +1 (800) 717 1738 or +1 (646) 307 1865
France Toll Free: +33 (800) 945 120

  • French-language at 9:00 a.m. ET. / 3:00 p.m. CET

Webcast link:
https://viavid.webcasts.com/starthere.jsp?ei=1775361&tp_key=2968b7b0ca
Phone number: +1 (800) 717 1738 or +1 (646) 307 1865
France Toll Free: +33 (800) 945 120

A replay will be available on the Company’s website following the event.  

About Cellectis     
Cellectis is a clinical-stage biotechnology company using its pioneering gene-editing platform to develop life-saving cell and gene therapies. The company utilizes an allogeneic approach for CAR T immunotherapies in oncology, pioneering the concept of off-the-shelf and ready-to-use gene-edited CAR T-cells to treat cancer patients, and a platform to develop gene therapies in other therapeutic indications. With its in-house manufacturing capabilities, Cellectis is one of the few end-to-end gene editing companies that controls the cell and gene therapy value chain from start to finish. Cellectis’ headquarters are in Paris, France, with locations in New York and Raleigh, NC. Cellectis is listed on the Nasdaq Global Market (ticker: CLLS) and on Euronext Growth (ticker: ALCLS). To find out more, visit www.cellectis.com and follow Cellectis on LinkedIn and X.  

For further information on Cellectis, please contact:         
     
Media contacts:              
Pascalyne Wilson, Director, Communications, + 33 (0)7 76 99 14 33, 
Patricia Sosa Navarro, Chief of Staff to the CEO, +33 (0)7 76 77 46 93, media@cellectis.com
Investor Relations contact:           
Arthur Stril, Chief Financial Officer & Chief Business Officer, investors@cellectis.com

Attachment

  • PRESS RELEASE_conference call_ENGLISH (https://ml.globenewswire.com/Resource/Download/0b5bb3dc-fd34-48a8-ab2a-a13f19bdaef7)

Filing Exhibits & Attachments

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